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Urdu QUESTION #5233

Question 3301

فوج کی جمع کیا ہے؟

فوج
افواج✔️
فوجیں
انجاج

Correct Answer Logic:

فوج کی جمع 'افواج' ہے۔ یہ عربی قاعدے کے مطابق جمع بنائی جاتی ہے۔

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Agronomy QUESTION #2074

Question 3302

In the context of water use efficiency (WUE), deficit irrigation strategy is agronomically justified when:

Full irrigation always maximizes both yield and profit regardless of water scarcity
Marginal value of the last unit of water applied to the crop (in terms of yield gain) falls below the marginal cost of water supply — intentionally applying less than full ET requirement increases WUE and economic returns per unit water while accepting a modest, manageable yield reduction✔️
Water is abundant and energy costs are negligible
Soil salinity prevents full water application

Correct Answer Logic:

Deficit irrigation deliberately applies water below full ET demand during less sensitive growth stages, exploiting crop drought tolerance to save water. The agronomic justification is economic: when water is scarce or costly, WUE (kg yield per m³ water) and profit per unit water is maximized by deficit irrigation — even with modest yield reduction — compared to fully irrigating a smaller area.

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City and Regional Planning QUESTION #4951

Question 3303

What is the primary objective of Heritage Conservation?

To prevent all changes
To preserve cultural and historical significance✔️
To increase tourism only
To restrict development

Correct Answer Logic:

Heritage Conservation aims to preserve buildings, sites, and areas of cultural and historical significance while allowing appropriate adaptive use and development that respects heritage values.

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Agronomy QUESTION #2029

Question 3304

The Penman-Monteith equation is used in irrigation management to estimate:

Soil water holding capacity
Reference evapotranspiration ($ET_0$) as the standard for computing crop water requirements✔️
The hydraulic conductivity of soil
The critical period of water requirement for a crop

Correct Answer Logic:

The FAO Penman-Monteith equation is the globally accepted standard for computing reference evapotranspiration ($ET_0$) using climatic variables (temperature, humidity, wind speed, solar radiation). Actual crop ET is then computed as $ET_c = K_c \times ET_0$, where $K_c$ is the crop coefficient.

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General Knowledge QUESTION #2591

Question 3305

What is 'Character Encoding' primarily used for in computing?

To compress large files for faster email attachments
To assign binary values to characters so that humans can read them on screen✔️
To convert images into printable text documents
To protect documents with passwords

Correct Answer Logic:

Character encoding is used to assign binary values to characters so that we as humans can read them. Without it, computers — which only understand 1s and 0s — would have no way to display recognizable letters, numbers, or symbols.

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General Knowledge QUESTION #174

Question 3306

Arshad Nadeem won the Olympic Gold Medal by throwing the Javelin to:

81.55 meters
81.21 meters
82.15 meters
None of these✔️

Correct Answer Logic:

He set an Olympic record with a massive throw of 92.97 meters.

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Paper-II (Pharmacognosy and Pharmaceutics-I) QUESTION #3014

Question 3307

'Soft Paraffin' (Petrolatum) is an example of an:

Absorption base
Oleaginous base✔️
Water-removable base
Water-soluble base

Correct Answer Logic:

Petrolatum is a hydrocarbon-based, greasy, oleaginous ointment base.

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Chemistry QUESTION #1450

Question 3308

What is the main product when nitrobenzene reacts with chlorine in the presence of $\text{AlCl}_3$?

Ortho-chloronitrobenzene
Meta-chloronitrobenzene✔️
Chlorobenzene
None of these

Correct Answer Logic:

The nitro group ($-\text{NO}_2$) is a strong electron-withdrawing, meta-directing group in electrophilic aromatic substitution (EAS). It deactivates the ring and directs incoming electrophiles to the meta position. Therefore, when nitrobenzene undergoes chlorination with $\text{Cl}_2/\text{AlCl}_3$, the major product is meta-chloronitrobenzene (1-chloro-3-nitrobenzene).

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Urdu QUESTION #5103

Question 3309

ادب کی اصطلاح میں تنقید کے معانی کیا ہیں؟

تشریح
نکتہ چینی✔️
وصف
ان میں سے کوئی نہیں

Correct Answer Logic:

تنقید کے لغوی معنی پرکھنا یا جانچنا ہیں۔ ادبی اصطلاح میں اس سے مراد کسی فن پارے کی خوبیوں اور خامیوں کو اجاگر کرنا ہے۔

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Chemistry QUESTION #5568

Question 3310

An organic compound A reacts with $NH_3$ to give B. On heating, B gives C. C reacts with $Br_2$/KOH to give $CH_3CH_2NH_2$ (ethylamine). Identify compound A.

$CH_3COOH$
$CH_3CH_2CH_2COOH$
$CH_3CH(CH_3)COOH$ (2-methylpropanoic acid)
$CH_3CH_2COOH$✔️

Correct Answer Logic:

Working backwards: $CH_3CH_2NH_2$ (ethylamine) is produced by Hofmann bromamide degradation of $CH_3CH_2CONH_2$ (propionamide). Propionamide (C) is produced by heating propanoic acid ammonium salt (B). B is formed when $CH_3CH_2COOH$ (propanoic acid = A) reacts with $NH_3$. So A = $CH_3CH_2COOH$.

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Basic Mathematics QUESTION #2840

Question 3311

A sum of money doubles itself at Simple Interest in 10 years. What is the rate of interest per annum?

8%
10%✔️
12%
15%

Correct Answer Logic:

If principal $= P$, then SI $= P$ (since it doubles). $P = \dfrac{P \times R \times 10}{100} \Rightarrow 1 = \dfrac{R \times 10}{100} \Rightarrow R = 10\%$ per annum.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3278

Question 3312

Which structure allows bacteria to survive extreme environmental conditions like heat and radiation?

Capsule
Flagella
Endospore✔️
Pili

Correct Answer Logic:

Endospores are highly resistant, dormant structures formed by certain bacteria like *Bacillus* and *Clostridium*.

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Boilers Mechanical Engineering QUESTION #3995

Question 3313

Which document must be produced by the owner upon the demand of an Inspector?

The Company's Tax Returns
The Registration Certificate of the boiler✔️
The CEO's identity card
The fuel purchase receipt

Correct Answer Logic:

Valid certification is proof that the boiler has passed safety inspections.

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City and Regional Planning QUESTION #4983

Question 3314

What is the primary objective of Transfer of Development Rights (TDR) in planning?

Generate revenue for government
Compensate landowners while preserving land✔️
Increase development density everywhere
Eliminate zoning regulations

Correct Answer Logic:

TDR allows landowners in preservation zones to sell development rights to owners in growth zones, compensating them for development restrictions while preserving agricultural land, heritage sites, or environmentally sensitive areas without government acquisition costs.

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Chemistry QUESTION #476

Question 3315

Which material possesses the highest pH?

Soft drinks
Bananas
Milk of magnesia✔️
Sea water

Correct Answer Logic:

Milk of magnesia is basic with high pH

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Electrical Engineering QUESTION #2170

Question 3316

A lossy transmission line has $R = 0.1\,\Omega/\text{m}$, $G = 0.01\,\text{S/m}$, $L = 1\,\mu\text{H/m}$, $C = 1\,\text{nF/m}$. Is the Heaviside distortionless condition $RC = GL$ satisfied?

No; $RC = 10^{-10}$ but $GL = 10^{-8}$✔️
Yes; both equal $10^{-9}$
Yes; both equal $10^{-8}$
Cannot be determined without frequency

Correct Answer Logic:

$RC = 0.1 \times 10^{-9} = 10^{-10}$. $GL = 0.01 \times 10^{-6} = 10^{-8}$. Since $RC \ne GL$, the distortionless condition is NOT satisfied.

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Paper-II (Pharmacognosy and Pharmaceutics-I) QUESTION #2982

Question 3317

How many milliliters are in one 'Fluid Ounce' ($fl~oz$) in the British system?

$28.41\text{ ml}$✔️
$29.57\text{ ml}$
$30.00\text{ ml}$
$25.00\text{ ml}$

Correct Answer Logic:

In the Imperial (British) system, $1~fl~oz \approx 28.41\text{ ml}$, whereas in the US system it is $\approx 29.57\text{ ml}$.

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English QUESTION #2736

Question 3318

Convert to PASSIVE VOICE: 'Will they announce the result?'

Will the result be announced by them?✔️
Will the result announced by them?
The result will be announced.
Was the result announced by them?

Correct Answer Logic:

In passive voice for future simple questions: Will + object + be + past participle + by + agent. 'Will the result be announced by them?' is correct.

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Mathematics QUESTION #1289

Question 3319

The limit $\lim_{x\to0}\left(\dfrac{1}{\sin x}-\dfrac{1}{x}\right)$ equals:

1
$\infty$
$-1$

Correct Answer Logic:

Combine fractions: $\dfrac{x-\sin x}{x\sin x}$. As $x\to0$, numerator $x-\sin x\approx\dfrac{x^3}{6}$ and denominator $x\sin x\approx x\cdot x=x^2$. So the limit $\approx\dfrac{x^3/6}{x^2}=\dfrac{x}{6}\to0$. L'Hôpital or Taylor series confirms the limit is $0$.

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General Knowledge QUESTION #4484

Question 3320

An economic model to eliminate waste and reuse resources is called:

Rational consumption
Mercantilism
Circular economy✔️
None of these

Correct Answer Logic:

Circular economy focuses on reuse, recycling, and sustainability.

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